Using smartphones and other screens has little impact on the wellbeing of teenagers - even before they go to sleep, according to a study.
Despite the common belief that screen time could damage young people's mental health, researchers at Oxford University have found little evidence to support these fears, using data from more than 17,000 teenagers.
"Implementing best practice statistical and methodological techniques we found little evidence for substantial negative associations between digital-screen engagement and adolescent wellbeing," said Amy Orben, researcher at the Oxford Internet Institute.
Time-use diaries and self-reported measures were used in the study from almost 12,000 adolescents in the UK, just over 4,500 from Ireland, and 790 in the US.
Results suggest that the total amount of time spent on screens per a day had a limited impact on teenager's mental health, regardless of it being a weekend or a weekday.
It also notes that digital screen usage two hours, one hour or even 30 minutes before sleeping presented no clear associations with a drop in wellbeing among teenagers.
"While psychological science can be a powerful tool for understanding the link between screen use and adolescent wellbeing, it still routinely fails to supply stakeholders and the public with high-quality, transparent and objective investigations into growing concerns about digital technologies," said Professor Andrew Przybylski, director of research at the Oxford Internet Institute and co-author on the study, published in the Psychological Science journal.
"Analysing three different datasets, which include improved measurements of screen time, we found little clear-cut evidence that screen time decreases adolescent wellbeing, even if the use of digital technology occurs directly before bedtime."